haraldwolff/qemu-patch-raspberry4
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qemu-patch-raspberry4/include/qemu
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Stefan Hajnoczi 9f02cfc84b bitmap: add atomic set functions 
Use atomic_or() for atomic bitmaps where several threads may set bits at
the same time.  This avoids the race condition between threads loading
an element, bitwise ORing, and then storing the element.

When setting all bits in a word we can avoid atomic ops and instead just
use an smp_mb() at the end.

Most bitmap users don't need atomicity so introduce new functions.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <1417519399-3166-2-git-send-email-stefanha@redhat.com>
[Avoid barrier in the single word case, use full barrier instead of write.
 - Paolo]
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-05 17:10:00 +02:00
..
acl.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
aes.h include/qemu/aes.h: Avoid conflicts with FreeBSD AES functions 2014-06-19 16:13:38 +01:00
atomic.h rcu: add rcu library 2015-02-02 16:55:10 +01:00
bitmap.h bitmap: add atomic set functions 2015-06-05 17:10:00 +02:00
bitops.h bitmap: add atomic set functions 2015-06-05 17:10:00 +02:00
bswap.h cpu_ldst.h, cpu-all.h, bswap.h: Update documentation on ld/st accessors 2015-01-20 15:19:35 +00:00
compatfd.h util: Remove unused functions 2015-04-30 16:05:48 +03:00
compiler.h qemu/compiler: Define QEMU_ARTIFICIAL 2014-09-29 14:55:28 -04:00
config-file.h qemu-option: introduce qemu_find_opts_singleton 2014-04-27 13:04:18 +04:00
crc32c.h include/qemu/crc32c.h: Rename include guards to match filename 2014-02-26 17:20:07 +00:00
envlist.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
error-report.h qemu-error: Add error_vreport() 2014-10-09 15:36:15 +02:00
event_notifier.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
fifo8.h util/fifo8: implement push/pop of multiple bytes 2014-02-08 14:50:48 +00:00
hbitmap.h block: Resize bitmaps on bdrv_truncate 2015-04-28 15:36:10 +02:00
host-utils.h target-ppc: Add ISA2.06 divde[o] Instructions 2014-03-05 03:06:39 +01:00
int128.h int128: Add int128_exts64() 2014-05-30 13:00:28 -06:00
iov.h iov: add iov_discard_front/back() to remove data 2013-01-02 15:58:05 +01:00
log.h qemu-log: add log category for MMU info 2014-12-16 18:43:19 +00:00
main-loop.h async: aio_context_new(): Handle event_notifier_init failure 2014-09-22 11:39:48 +01:00
module.h module: implement module loading 2014-02-20 13:14:18 +01:00
notify.h notify: add NotiferWithReturn so notifier list can abort 2013-06-28 09:20:26 +02:00
option.h qemu-img: Suppress unhelpful extra errors in convert, amend 2015-02-26 14:51:21 +01:00
option_int.h QemuOpts: change opt->name|str from (const char *) to (char *) 2014-06-16 17:23:20 +08:00
osdep.h util: move read_password method out of qemu-img into osdep/oslib 2015-05-22 17:08:01 +02:00
queue.h queue: fix QSLIST_INSERT_HEAD_ATOMIC race 2015-03-12 17:41:23 +00:00
range.h Introduce signed range. 2014-06-19 18:44:19 +03:00
ratelimit.h aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
rcu.h rcu: do not create thread in pthread_atfork callback 2015-04-01 10:06:38 +02:00
rcu_queue.h rcu: introduce RCU-enabled QLIST 2015-02-16 17:30:19 +01:00
readline.h readline: Add missing GCC_FMT_ATTR 2014-02-01 13:46:06 +04:00
rfifolock.h rfifolock: add recursive FIFO lock 2014-03-13 14:42:21 +01:00
seqlock.h seqlock: introduce read-write seqlock 2013-10-17 17:24:15 +02:00
sockets.h socket shutdown 2015-01-16 13:06:17 +05:30
thread-posix.h qemu-thread: add QemuEvent 2013-10-17 17:30:55 +02:00
thread-win32.h qemu-thread: add QemuEvent 2013-10-17 17:30:55 +02:00
thread.h rcu: add rcu library 2015-02-02 16:55:10 +01:00
throttle.h throttle: add throttle_detach/attach_aio_context() 2014-06-04 09:56:12 +02:00
timer.h profiler: Reenable built-in profiler 2015-03-18 12:07:34 +01:00
tls.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
typedefs.h Add device listener interface 2015-01-20 14:24:07 +00:00
uri.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
xattr.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00